流动: 1.(液体或气体移动) flow; run; circulate 短语和例子河水缓缓地流动。 the river is flowing slowly. 空气流动。 the air is circulating.2.(经常变换位置) going from place to place; on the move; mobile 短语和例子流动电影放映队 mobile film
普通: common; general; ordinary; plain; honest; private; trile; average 短语和例子普通一兵 an ordinary soldier; a soldier in the ranks; a rank-and-filer; 普通人 the average person; the man in the street; 这是